re #93070. test for command arguments.

extensions/vscode-notebook-tests/package.json

@@ -31,6 +31,11 @@
       {
         "command": "vscode-notebook-tests.createNewNotebook",
         "title": "Create New Notebook"
+      },
+      {
+        "command": "vscode-notebook-tests.debugAction",
+        "title": "Debug Notebook Test Cell Action",
+        "icon": "$(debug)"
       }
     ],
     "notebookProvider": [
@@ -63,6 +68,15 @@
           "text/custom"
         ]
       }
-    ]
+    ],
+    "menus": {
+      "notebook/cell/title": [
+        {
+          "command": "vscode-notebook-tests.debugAction",
+          "when": "notebookViewType == notebookSmokeTest",
+          "group": "inline@1"
+        }
+      ]
+    }
   }
 }

extensions/vscode-notebook-tests/src/notebookSmokeTestMain.ts

@@ -93,4 +93,15 @@ export function smokeTestActivate(context: vscode.ExtensionContext): any {
 			return;
 		},
 	}));
+
+	context.subscriptions.push(vscode.commands.registerCommand('vscode-notebook-tests.debugAction', async (cell: vscode.NotebookCell) => {
+		if (cell) {
+			const edit = new vscode.WorkspaceEdit();
+			const fullRange = new vscode.Range(0, 0, cell.document.lineCount - 1, cell.document.lineAt(cell.document.lineCount - 1).range.end.character);
+			edit.replace(cell.document.uri, fullRange, 'test');
+			await vscode.workspace.applyEdit(edit);
+		} else {
+			throw new Error('Cell not set correctly');
+		}
+	}));
 }

test/automation/src/notebook.ts

@@ -89,4 +89,8 @@ export class Notebook {
 	async executeActiveCell(): Promise<void> {
 		await this.quickAccess.runCommand('notebook.cell.execute');
 	}
+
+	async executeCellAction(selector: string): Promise<void> {
+		await this.code.waitAndClick(selector);
+	}
 }

test/smoke/src/areas/notebook/notebook.test.ts

@@ -62,5 +62,13 @@ export function setup() {
 			await app.workbench.notebook.focusOutCellOutput();
 			await app.workbench.notebook.waitForActiveCellEditorContents('code()');
 		});
+
+		it('cell action execution', async function () {
+			const app = this.app as Application;
+			await app.workbench.notebook.openNotebook();
+			await app.workbench.notebook.insertNotebookCell('code');
+			await app.workbench.notebook.executeCellAction('.notebook-editor .monaco-list-row.focused div.monaco-toolbar .codicon-debug');
+			await app.workbench.notebook.waitForActiveCellEditorContents('test');
+		});
 	});
 }